import re
import string

parenthetical = re.compile(r"\([^)]+?\)")
punct_table = {ord(p): " " for p in string.punctuation if p not in "-'"}
stops = {
	"i", "me", "my", "myself",
	"we", "our", "ours", "ourselves",
	"you", "your", "yours", "yourself", "yourselves",
	"he", "him", "his", "himself",
	"she", "her", "hers", "herself",
	"it", "its", "itself",
	"they", "them", "their", "theirs", "themselves",
	"what", "which", "who", "whom",
	"this", "that", "these", "those",
	"am", "is", "are", "was", "were",
	"be", "been", "being",
	"have", "has", "had", "having",
	"do", "does", "did", "doing",
	"a", "an", "the", "and", "but", "if", "or", "because", "as", "until",
	"while", "of", "at", "by", "for", "with", "about", "against", "between",
	"into", "through", "during", "before", "after", "above", "below", "to",
	"from", "up", "down", "in", "out", "on", "off", "over", "under", "again",
	"further", "then", "once", "here", "there", "when", "where", "why", "how",
	"all", "any", "both", "each", "few", "more", "most", "other", "some",
	"such", "no", "nor", "not", "only", "own", "same", "so", "than", "too",
	"very", "s", "t", "can", "will", "just", "don", "should", "now", "d",
	"ll", "m", "o", "re", "ve", "y", "ain", "aren", "couldn", "didn", "doesn",
	"hadn", "hasn", "haven", "isn", "ma", "mightn", "mustn", "needn", "shan",
	"shouldn", "wasn", "weren", "won", "wouldn"
}


def summarize(phrase):
	phrase = parenthetical.sub("", phrase)
	phrase = phrase.translate(punct_table)
	words = phrase.split()
	relevant_words = [word for word in words if word not in stops]
	if not relevant_words:
		relevant_words = words
	summary = " ".join(relevant_words[:10])
	return summary
